Listed below are recent insider transactions of 1,000...

INSIDER TRADING

Listed below are recent insider transactions of 1,000 shares or more for publicly held companies based in Maryland or having substantial operations in the state.

The transactions are reported to the Securities and Exchange Commission. Insiders are officers, directors or owners of 10 percent or more of a corporation's stock.

Biospherics

Gilbert V. Levin, chairman, sold 11,000 shares of common between $7.75 and $8.88 each from Sept. 6 to Sept. 7, 1995, and now directly and indirectly holds 1,697,253 common.

M. Karen Levin, officer, director and beneficial owner, sold 89,000 shares of common between $8.50 and $23.50 each from Sept. 7 to Sept. 12, 1995, and now directly and indirectly holds 1,697,253 common.

Citicorp

Pei Yuan Chia, officer and director, sold 5,000 shares of common at $66.25 each on Sept. 1, 1995, and now directly and indirectly holds 105,301 common.

General Motors

Arthur Noble Chester, officer of a subsidiary, sold 1,000 shares of class H common at $42.00 each on Aug. 7, 1995, and now directly and/or indirectly holds 6,360 class H common and 289 common.

Host Marriott

Matthew J. Hart, retired, exercised an option for 47,313 shares of common at $13.13 each on Sept. 20, 1995, and sold them at an unreported price. He now directly and indirectly holds 357,171 common.

Stephen J. McKenna, vice president, exercised an option for 46,507 shares of common at $12.69 each on Sept. 29, 1995 and sold them at an unreported price. He now directly holds 210,391 common.

Intersolv

Kevin J. Burns, chairman, exercised an option for 155,270 shares of common between $5.06 and $8.75 each from Sept. 1 to Sept. 22, 1995. To cover expenses of the transaction, Mr. Burns turned in 59,200 of them for $6.75 each from Sept. 1 to Sept. 22, 1995, and sold 96,070 shares in the open market for between $20 and $22.25 from Sept. 1 to Sept. 22, 1995. Mr. Burns indirectly sold 10,000 shares of common at $20 each on Sept. 1, 1995, and now directly and indirectly holds 209,003 common.

Richard A. Carpenter, director, sold 2,500 shares of common at $21 each on Sept. 19, 1995, and now directly holds 252,885 common.

Robert N. Goldman, director, sold 3,000 shares common at $21.42 each Sept. 12, 1995, and no longer holds shares in the company.

Gary G. Greenfield, president, exercised an option for 30,000 shares of common at $6.50 each on Sept. 22, 1995 and sold them at $20.45 each on Sept. 22, 1995, and now directly holds 10,610 common.

T. Rowe Price

John H. Laporte, director, exercised an option for 10,000 shares of common at $11.38 each on Sept. 22, 1995, and now directly and indirectly holds 401,076 common.

Brian C. Rogers, officer, exercised an option for 5,016 shares of common at $11.38 each on Sept. 22, 1995, and now directly holds 87,268 common.

Charles Paul Smith, officer, exercised an option for 3,000 shares of common at $18.75 each on Sept. 11, 1995, and sold them at $48.75 each on Sept. 11, 1995. He now directly holds 80,675 common.

Travelers Group

Charles O. Prince, vice president, exercised an option for 6,575 shares of common at $32.63 each July 18, 1995. To cover expenses of the transaction, Mr. Prince turned in 5,510 of them for $47.13 each July 18, 1995. He now directly and indirectly holds 123,593 common.